Repeating firearm.



- W. H. GATES. BEM-EATING` PIBEABM. APPLIUATION FILED AUG. 3, 1908.

Patented sept. 14.1909.

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Arm/mfr t e To all-whom it may concern:-

UNiTEn sTATEs PATENT OFFICE.

WILLIAM H. GATES, OI.' N ORWICH, CONN'EIIICUT. l

REPEATING. FIBRA-RM. j

.Be it known that I', WILLIAM H'. GATES, aA citizen of the UnitedStates, residing. at Norwich, in the countyof New London and State ofConnecticut, have invented a certain newand useful Improvement inRepeating Firearms, of which the following is a speci- Iication. u l

This invention is in repeat-ing fire arms, and has special relation toso called slide action repeating shot guns, although thedominatingelementar ent improved arm cou d in repeating ries. y

My present improvements relate chiefly to the lock 'andcartridge-handling mechanisms of sucharms and `I' have particularly 1nmind-'to provide a strong, safe and simple f bolt action which has noexposed project- 1ng parts. I have also provided what I befeatures of myresbe as readilyuti ized `lieve to be a novel type of gate, or cut-o"toprevent the passaofe of more than one car-y tridge at a time fi'om thema azine to the. carrier mechanism. Incidenta tures ofthe said-arm havebeen .I have explained hereinafter. These several features -ofimprovementl are clearly illustrated in the annexed drawings, Figure 1beinga side elevation of. an arm embodyingl my saidy invention. Fig; 2'isa relatively eny other f eaimproved, as

y largedside view of the frame or receiver of lat ceiver, a freshcartridge having been raised to a level with the barrel ready to bepusheid into said barrel' by the bolt. Fig. 4. 4 -isa similar viewshowingl the same arts as" they appear after the said-cartridge as beenthus pushed: into the ba-rrelI and the carrier has been lowered toitsnormalpositiong-the arm being cockediand 'ready' for firing. Figg'iis a top view ofthe receiver and portions of the stock and barrel, thereeelver being partly brokenaw'ay to disclose a.. latch whic yspeemcation qf Letters raient. Application led' August 3, 1908. SerialNo.

. tional, vieu7 forms one of thenovel features of my preslentimprovement. Fig; 6 is a transverse, sec on the'line 6-6 of Fig. 3look-` .asentea sept. 14, 190e.

ing in the direction ofthe arrow. Fig. 7 is 4 a side elevation, partlybroken away,of the -engaging portions of' the receiver and barrelshowing particularly the cutoff for preventing the undue escape ofthecartridges from the magazine into'the receiver, and also the meansprovided for operating the said cutoH.' Fig: 8 is a transverse,sectional, View taken onvthe line 8 8 of Fig. 2, looking'in thedirection of the arrow. In Fig. 9 Il have shown,in perspective, thetrigger plate having the trig er and sear pivoted therein. Fig. 10 is aview of the bolt, showing thering-pin, ex-

tractor and ejector mounted therein and Fig..

11 is a view of said bolt taken'from the side opposite to that of Fig.10. F1g.12 1s a perspective vieW- of the carrier by means of' which thecartridges are raised from the levell of the magazine to the level ofthe barrel. Fig. 13 1s a perspective view of the extension rod 19andFig. 11 is a perspective view of the safety lever33 which co-actswith the trigger. l.

Invthese drawings the reference numeral ongitidinal, central, sectional10 indicates the stock of' the arm, 11V the receiver, which serves vas ahousing. for the lock and cartridge-handling mechanlsms; 12. is thebarrel and 13 the ma azine tube; sald magazine tube beinglocateunderneath the barrel and beingsupported' atv its front end portion inaring 14k secured to the barrel;

the magazine tube being free to slide in said' rinfr whenever it becomesnecessary or desirable to se varate the barrel from the receiver. Thearrel has fixed to its rear end portion a plate 15 conforming in outlineto the'cross section ofA the receiver, the lower portion of said platevhaving an opening adapted to'receive a nut 16 loosely mounted on therear end'ofthe magazinetube, and?v threaded "exteriorly to as seeninFig. 3 of the4 said nut being screw luto the receiver,

thedrawings. The said* nut then serves as ioo a supportfcr. the rearend'of the tube l13 and.- also'as a' dowel'to prevent thedis lacement' jof' the plate 15, as well: asthe acci ental 11nscrewing of the barrelvfromthe receiver.

Mountedto 'move longitudinally u on the" magazinetube13y is hand slide17 aving ceiver, y

haps more important, purpose which I will secured thereto a bar 18whichlatter extends rearwardly and has interlocked therewith anextension 19 which is covered and protected, when the arm is completelyassembled, by a plate 20 slidably mounted in a dove-tail groove in theside of the receiver. By means of the hand slide `17 and the attached,twopart, bar 18-19, the lock-mechanism and other operative parts, may bereadily actuated in order to eject a dischar ed shell and to transfer afresh cartridge from the magazine to the barrel and, simultaneously, tocock the arm and set the trigger.'

In the receiver portion, into which the barrel is screwed I haveprovided a xed annulus 21 which forms one vof the irnportant features ofmy present improvement. This annulus is so located that it serves as asubstantial abutment for the barrel end, when the barrel is screwed homein the .reand it also serves another, and perex lain.

rdinarily the rear endA portion of the barrel has to be notched, orotherwise recessed, to receive the free end of the extractor hook, inorder that the said hook may lie in front of the flanged'cartridge headand, when the extractor is thus seated in the barrel notch, iteiectually locks the barrel 'a ainst rotation and it 1s thereforeimpossibile to separate the barrel from the receiver until the arm hasbeen cocked or, at all events, not until the extractor hook has rst beenwithdrawn from the barrel notch. In my improved construction the notchfor the reception of the` extractor is made in the xed annulus, as seenat 22 in Figs. 2 and 3, thus rendering it unnecessary to cut into thebarrel end, and leaving the barrel end free to be rotated, or partiallyrotated, in order that itv may be detached from the receiver.

As each cartridge passes rearwardly from the magazine tube 13 into thereceiver it is deposited upon a carriert23 which is fulcrumed at 24inthe said-receiver; the said carrier being then elevated, as seeninFig. 3 to .raise the cartridge into alinement with the barrel and sothat it (the cartridge) ma be forced forward, and seatedV in the barreby the forward movement of the bolt. The rear end portion of saidcarrier is formed with two projections 23a 23b the former of which islocated at the rear of the carrier fulcrum and the latter at the frontof said fulcrum, said projections being adapted to be engagedalternately by a bracket 25 carried by the sliding bar 19, that is tosay when the said b ar is slid rearwardly, the attached bracket 25engages the projection 23a and forces the rear end of the carrierdownward and thus eleva-tes the free front end of said carrier and, percontra, when the bracket 25. is moved forward again, to return it to itsnormal position, it (the bracket) engages the projection 23b and thusrocks the carrier downward to its initial osition, ready to receive thenext cartridge from the magazine tube. In order to prevent the prematurereturn of the carrier from its elevated position to its initialposition, I have provided in the side wall of the receiver aspringpressed plug 26 whose rounded end enters a depression in thecarrier, when the latter is in its elevated position (see Fig. 8) andthus serves frictionally and temporarily to prevent the prematuredownward movement of the carrier.

The trigger 27 is pivoted in a plate 28 that is secured to the receiverby a pin 29 at one end and by a screw 30 at its other end and the sear31 is pivoted in a stand 3la formed on the said plate 28, as will'bebest understood by reference to Fig. 9 of the drawings. The sear 31has two rearwardly projecting arms the lower of which is adapted to beengaged by the trigger and the upper of which is so located that it maybe engaged by the head 45a -of the firing pin when the bolt is slidrearwardly to cock the arm (see particularly Fig. 4). When the triggeris pulled,`to discharge the arm, the sear is rocked downward until itsupper arm is'released from engagement with the firingpin head when saidfiring-pin is sna ped forward as I shall explain more fully later.

I desire to call particular attention vto two forms of safety deviceswhich I have provided in connection with the trigger in order to preventthe accidental discharge of the arm before the new cartridge iscompletely seated in the barrel, and the bolt is securely locked in itshome position in the receiver. One of said safety devices consists of alever 33. that is pivoted on a screw 34 in the side wall of the receiverat, or about, the same point where the sear is pivoted. The rear end ofthe lever 33 is adapted to be moved into the path of a stud 27El on thetrigger and the front ends of said lever bears a stud 33a that lies inthe path of a rib 19a on the sliding bar 19. When the saidbar is in itsforward,or normal position, as seen in Fig. 2, the rib 19a holds thesafety lever out of locking engagement with the trigger stud 27 but sosoon as bar 19 is moved rearward the rib 19. passes away from the leverstud 33a and the said lever is permittedl to rock on its fulcrum soas tomove its rear end into locking engagement with the trigger study. Thetrigger 1s thus prevented from being pulled oi until the bar 19 returnsto its normal position and the bolt has been safelylocked in its homeposition in the receiver. I have also provided another safety feature inthe form of an upward extension 27 b on the trigger that lies in therearward path of the bracket 25 which I have already referred to. Whenthe said bracket engages then said trigger extension and positivelyrocks the trigger into position to receive the safety lever 33. If thiswere not so the-trig er proper might be held rearward by the-finger ofthe gunner in which case the Sear would be held out of engage-l mentwith the firing-pin and the latter would return with 'the bolt insteadof being retained by the sear.V Y The cartridge cut-off, which I havealready briefly mentioned, is best seen in Figs. 6 and 7 vand consistsessentially of a bolt 35 mounted to slide vertically in a hole in theside of the receiver, said boltbeing held normally in its elevatedposition by a spring 36. The bolt 35 is formed with a lateral iin 3 5that extends -into the path traversed by the cartridges as the latterpass from the magazine tube into the receiver, as is clearly illustratedin Fig. 6; The sliding bar 19 is l0- cated immediately over the upperend of the said bolt 35 and said bar has pivoted thereto a pawl 37 whosefree end enga es the said bolt, and forces it downward, w en the bar 19is moved rearwardly (see Fig. 7). This Vdownward movement of the cut-off35a occurs at the tirst rearward movement of the bar 19 and said gate isheld open justy long enough to allovs7 the passage of the head of thecartridge then seeking to pass into the receiver. As said head passesthe cut-ofi'l the pawl 37 passes out of engagementwith bolt 35 and thespring 36 forces said bolt upward again, thus moving the cut-0H fin intoposition to check the rearward movement of the next cartridge in themagazine. When i dinally in the chambered upper portion of.

the bar 19 is slid forward agaln the pawl 37 yields `and passes over theend of bolt 35 without disturbing the latter. v

I will now describe the lock-mechanism bolt and the parts immediatelyconnected therewith. The said bolt vindicated bythe reference numeral38, is of the usual cylindrical form and is adapted to slide longituthereceiver. Loosely mounted' on bolt 38 is a tubular section 39 which is,formed with longitudinal ribs 3954-39b that project ra dially from thecircumference of said section 39, the said lribs being so located thatthey may be rocked into engagement with solid portions of the receiverwheny the bolt 38 is 1 in its normal or closed position, in order tolock the said bolt a ainst endwise deflection. The rib 39a thusl loc sagainst the upper wall of the receiver (see Figs. 1', 4 and 5,)1and therib 3.9b thus locksagalnst the lower wall of the bolt chamber (see Fig.4). When it is desired to'slidc bolt 3S vrearward, as in the act ofextracting an empty ,'shell and cooking the arm, the tubular section 39is first rocked suiiiciently to move theribsl 39a. 39b out of abuttingengagementwith the solid portions of the receiver, and such rockingmovement is produced by a 'stud 19b on the sliding bar' 19; said studlying in a spiral groove orchannel cut in the lower circumferential wallof the section 39 as is plainly seen in Fig. 3 of the drawings. Thefirst rearward movenient of bar 19 causes the tubular section 39 to rockon bolt 38 sufficiently to vmove the ribs 39a -39b out of lockinengagement with the receiver, and continue movement of said bar 19 andits stud 19b operates to slide thebolt 38 and 'its attached artsrearward; the rib 39a meanwhile sliding in an internal channel in vthetop of the receiver F 3).

Secured to the front end portion of the bolt 3,8 is a spring extractorhook 40 of ordinary construction, andl mounted to slide .a limiteddistance in thelower front portion of said bolt is an ejector 41. Thetiring-pin isdenoted by the reference numeral 42. The mainspring isconfined between a shoulder 42a on the firing-pin head and a nut- 44screwed into the rear end of bolt 3,8. Upon the extreme rear end portionof the .firingpin is iixedly mounteda head 45 which 'has a downwardlyproject-ing spur 45l that is adapted to engage the sear, as seen in Fig.4, to hold the firing-pin rearward when the bolt 38 returns to its homeposition after reloading the arm.

I have found it desirable to lock the tubuhas been reloaded, in orderthat the loaded cartridge in the barrel may not, by oversight, `bethrown out, and this I have accomplished by pivoting in the side of therecelver a' spring latch 47 whose front end is formed with a projectingnose adapted to enter a slot 39a in the tubular section.` 39 whenthebolt is in its home or forward position in the receiver, thuseffectually preventing the rotation of section 39 until the arm isdischarged, whenthe firing-pin head enages a project-ion 47a on theinner side of atch 47 and forces the nose of the latch outof lockingengagement with the slot 39c (see Fig. 5). If, however, it should bedesired to unlock section 39 without first discharging the arm it may be`accomplished by means of a thumb-piece 47b extending out- (see larsection 39 in the receiver after the arm f wardly through a` hole in theside wall of the receiver.

I wish to direct particular attention to the fact that the o lerativevparts of my improved arm, as ierein described, are completely linclosedand protected fromthe action of the elements, also that the variouselementary parts are of strong construction and they are mainlyrpositivein their operations. Y 7 Having 'thus described my invention I claim asnew and wish to secure by Letters Patent l. In a fire-arm, thecombination of a regage the receiver Vwhen ceiver,

' ceiver,

ceiver, a bolt slidably mounted in said receiver, a spirally groovedcollar rotatably mounted on said bolt and formed with abutment lugs, andmeans for moving the bolt longitudinally in the receiver consisting of abar having a stud engaging the said spiral groove.

2. In a fire-arm, the combination of a receiver, a bolt slidably mountedin said -receiver, means for moving said boltlongitudinally in thereceiver and a trigger; an action bar said trigger being formed with anextension that is engaged bythe action bar during the rearward movementof the bolt to temporarily lock the trigger.

3. In a fire-arm, the combination of a rea bolt slidably mountedtherein, means consisting of a slidin bar for moving said boltlongitudinal y, a trigger formed with an extension located in therearward path of the action bar, a sear adapted to co-act with the saidtri ger and alslo located in the rearward path o the said 4. In afire-arm the combination with a receiver, of a bolt slidably mountedtherein, a colla-r rotatably mountedon said bolt and formed withabutment lugs adapted to enthe bolt is in its closed or firing osition,means for partially rotating said co lar, a sear having an eXtensionlocated in the rearward ath of the action bar and a trigger adapted) toco'act with the sear;l said Sear being also formed with a projectionthat lies in the rearward path of the bolt. v

5. In a lire-arm, the combination yof a re-v ceiver, a carrier in saidreceiver, a tubular ma azine, a cut-0H between the magazine an carrierconsisting of a gate movable transversely to themove ent of thecartridge, and means consistin of a sliding bar and a yielding awlcarrie by said bar for opening the sai gate.

' 6. In a fire-arm, the combination of a receiver, a bolt slidablymovable therein, a trigger formed with an extension thatis engagedv bythe action bar as the latter is moved rearward, a safety lever adaptedto be moved into engagement with the trigger to lock the latter, andmeans for moving said safety lever into engagement with the' trigger.

7. In a fire-arm, the combinationl of a receiver, a bolt 'slidably andnon-rotatably mounted therein, 'a collar rotatably mount-ed on said boltland means consisting' lof a springfactuated latch hung in the receiverfor preventingl the rotation and unlocking of the collar. Y' v 8. In afire-arm, the-combination o'f a re-'f a bolt y slidably mounted in saidr e. ceiver,*a'collar-rotatably mounted on said bolt, means consistin ofa spring-actuated latch hung in he receiver for preventingi thevreleasing said latch during rotation of the said collar, and means forthe operation of dischargin the arm.

9. In a re-arm, the combination of a receiver, a bolt slidably mountedtherein, a collar rotatably mounted on said' bolt and provided with anabutment lug adapted to engage the receiver, and a spring-actuated latchhung in the receiver and operatin normally to prevent the. rotation ofsai collar.

10. In a fire-arm, thecombination of a receiver, a barrel connected withsaid receiver,

an annulus fixed in the receiver and serving as a thrust abutment forthe barrel, a bolt slidably mounted in the receiver, an abutment lugrotatably mounted on said bolt, and means for normally retaining said'abutment lug in its lock'ng position.

11. In a hre-arm, the combination of a receiver, a barrel connected withsaid receiver, an annulus fixed in said receiver and serving as a thrustvabutment for the barrel, a bolt slidably mounted in ,the receiver, anabutment lug rotatably mounted ony said bolt, and means, consistiiigof aspring-actuated latch, for normally retaining said abutment lug in itslocking position.

12. In a tire-arm, the combination of a receiver, a bolt slidablymounted in said re'- ceiver, an abutment lug rotatably mounted onsaidvbolt, means for partially rotatin the said abutment lug, and meansfor loc ung the said abutment lug against rotation during the operationof isc arging the arm.

l13. In a fire-arm, the combination or a receiver, a bolt slidablymounted therein, an abutment lug rotatably mounted on said bolt, meansconsisting of a s iral channel and a slidable lug co-actin with saidchannel for artially rotating t e said abutment lug, and) meansconsisting of a4 ated latch hung the said abutment tation. y

14. Ina fire-arm, the combination of a receiver, a bolt slidably mountedtherein, an abutment lug rotatably mounted on vsaid bolt, meansconsisting of as iral channel and a slidable lug co-acting with 4saidchannel for artially rotatingthe said abutment lug, an for sliding thebolt longitudinally and means in the receiver for locking said abutmentlug against accidental rotation.

15. In a fire-arm, the combination of `a receiver, a bolt slidablabutment lug rotata y mounted on said bolt, means consisting of a spiralchannel slidable lug, for moving the inally and for partially-rotatinthe receiver or locking lug against accidental robolt longitu 'ing thesaid abutment lug, and means con- 16. In a fire-arm, the combinationring-actumounted therein, an l of'a 130 receiver, a bolt sldably ing thesaid lug mounted therein, a :spuug-actuated firin -pin slidably mountedin said bolt, a sear ying in the rearward path ofthe firing-pin, anabutment lug rotatably mounted on said bolt, and means for partialy'rotating said abutment lug and spring-.actuated means in the receiverfor lockingnsaid abutment lug.

17. a fire-arm, the combination of a receiver, a bolt slidably mountedtherein, asprinG-actuated firing-pin 'slidably mounted in said@ bolt, asear loca-ted in the rearward path of the firing-pin, an abutment lugrotatably mounted on saidbolt, means for partially rotating the saidabutment lug, and means for moving said bolt rearwardlyin the receiverand spring-actuated means in the receiver for locking said abutment lug.

18. In a lire-arm, the combination of a receiver, a bolt slidablymounted therein, a spring-actuated firing-pin slidably mounted 1nsaidbolt, a sear located in the` rearward path of the firing-pin, anabutment lug rotatably mounted on the said bolt, means for partiallyrotating said abutment lug, and means for locking said lug againstrotation. 19. In a fire-arm, the combination of a receiver, a boltslidably mounted therein, a spring-actuated firing-pin slidably mountedin saidtbolaa Sear located in the rearward path 'of the firing-pin, anabutment lug rotatably mounted Von the lsaid bolt, means for partiallyrotating the said lug, means for lockagainst rotation, and means formoving the bolt rearwardly in the receiver.

20. In a fire-arm, the combination of a receiver, a bolt slidablymounted therein, an abutment lug rotatably mounted on said bolt, meansfor, partially rotating said abutment lug, means for looking said 1uagainst rotation, a .cartridge carrier verticly movable in saidreceiver, means for elevating and for lowering the said carrier in thereceiver, and means for'tem orarily retaining" saidlcarrier in itselevate( position.

2l. In a fire-arm, the` combination of'a receiver, a .bolt slidablymovable therein, means for moving said bolt` longitudinally in thereceiver, a cartridge carrier vertically movable in said receiver, meansfor elevating and lowering said carrier, a tubular magazine adapted todeliver cartridges onto said carrier, a cut-off between the magazine andcarrier consisting. of a gate movable transversely to the vmovement ofthe cartridges, andl means consisting of a sliding bar and a pawlcarried by the said bar for openin the said gate. .Y

22. n a {ire-arm, the combination 'of a receiver, -a bolt slidablymounted therein', an

extractor hook carried by said bolt, an abutment lug rotatably mountedon said bolt, means for partially rotating .said abutment `lug, meansfor moving the b oltlongitudilceiver and formed with nally in thereceiver, means consisting of al s rlng-actuated latch for' lookin thesaid a utment lug against rotation, an an ejector mounted insaid bolt.

23. In a fire-arm, the' combination of a receiver, a magazine tubesecured to saidgreceiver, a safety lever hung in the receiver.

a cartridge carrier fulcrumed in .said rea rearwardly lexportion, atrigger located between carrier extension and the said safety tendin thesai lever, said trigger being provided with a laterally projecting stud,and means for moving said safety lever into engagement with the saidstud.

24. In a firearm, the combination of a receiver, a magazine tube securedAto said receiver, a cartridge carrier fulcrum'ed in said receiver andformed with a rearwardly extending portion, a safety lever hung in thereceiver, a trigger and co-acting sea-r located between the said carrierextension and safety lever, means for moving said safety lever intolocking engagement with the trigger during the operation of unloadingand reloading .the arm, and means for releasing said safety upon thereloading of the arm.

25. In a fire-arm, the combination of a receiver having an internalchannel in its upper portion, a bolt slidably mounted in said recelver,an abutment lug .mounted upon said bolt and adapted to be rocked intocoincidence with said channel, a spirally grooved collar on the bolt forrocking said lug, and means for preventing the engagement of the saidlug and channel.

26. In a fire-arm, the combination pf a receiver having an opening inits upper portion and a channel leading rearwardly from said opening, abolt slidably mounted in the receiver, an abutment lug mounted upon saidboltand adapted to be rocked into coincidence with the said channel, aspirally ooved collar on the'bolt for rocking said gir ,means forpreventing the engagement of the said lug-and channel, and for movingthe bolt longitudinally in the receiver.A

27. In a fire-arm the combination of a receiver havingV an opening inits upper portion and a channelleading-rearwardly from said opening, abolt slidably mounted in the receiver, an abutment lug mounted on saidbolt andadapted to be rocked into coincidence with said channel andmeans consisting of a spiral groove and a co-acting stud for rockin thesaid lug into coincidence with the said channel and means within thereceiver for locking/said lug against accidental rotation.

28. In a tire-arm, the combination of a receiver having an opening inits` upper portlon and an internal channel leading rear-l wardly fromsaid opening, a bolt slidably mounted in the receiver, an abutment lugmounted on said boltv and adapted tol be y gagement with saidprojection.

rocked into coincidence withasaid channel, means for thus rocking saidlu on the bolt, and for moving the bolt longitudinally in the frame, andmeans for latching the said abutment .lug against rotation.

29. In a fire arm, the combination of a receiver, a magazine tubesecured to said receiver, a safety lever hung in the receiver, acartridge carrler ulcrumed in said receiver and formed with a rearwardlyextending integral portion, a trigger located .between the said carrierextension and said safety lever, said trigger having a lateralprojection, and means for moving said safety lever into en- 30. ln a irearm, the combination oa reg secured to said receiver, a cartridgecarrier receiver and formed with a rearwardly extending integralportion, a safety lever hung in the receiver, a trigger and coactingsear located between 'the said carrier extension and safety lever, meansfor moving said safety lever into locking engagement with the triggerduring the Voperation of unloading and reloading .the arm, and automaticmeans for releasing said safety lever upon the reloading of the arm.

WILLIAM H. GATES.

Witnesses:

FRANK ALLEN, MADEIJNE D. RrrCHrE.

